G11B 9/075
Using mechanical contact with record carrier
Official title: {using mechanical contact with record carrier, e.g. by stylus}
G11B9/075 (Using mechanical contact with record carrier) appears on 62 US grants and 5 published applications in this corpus.
Search patents in G11B- Granted patents
- 62
- Published applications
- 5
- Assignees
- 9
- Inventors
- 72
- Latest grant
- 28 Oct 2008
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 6 | 0 |
| 1982 | 14 | 0 |
| 1983 | 10 | 0 |
| 1984 | 10 | 0 |
| 1985 | 8 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 1 |
| 2006 | 0 | 2 |
| 2007 | 1 | 1 |
| 2008 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Reducing variations in density of perturbations on a storage medium28 Oct 2008US 7,443,781 B2Hewlett-Packard Development Company, L. P.
- Pickup device22 May 2007US 7,221,639 B2Pioneer Corporation
- Stylus for capacity change detection type disc system24 Feb 1987US 4,646,282 AVictor Company of Japan, Ltd.
- Information signal regenerating stylus and manufacturing method thereof17 Jun 1986US 4,596,009 AMatsushita Electric Industrial Co., Ltd.
- Pickup stylus having fused diamond and ceramic bodies with conductive surfaces for capacitance disk records17 Sep 1985US 4,542,493 AVictor Company of Japan, Ltd.
- Recording/reproduction head and recording/reproduction device18 Jan 2007US 2007/0014047 A1
- Reducing variations in density of perturbations on a storage medium2 Feb 2006US 2006/0023612 A1Hewlett-Packard Development Company, L. P.
- Recording/reproducing head, method of producing the same, recording apparatus and reproducing apparatus5 Jan 2006US 2006/0002273 A1Pioneer Corporation
- Recording/reproducing head, method of producing the same, and recording apparatus and reproducing apparatus9 Jun 2005US 2005/0122886 A1Pioneer Corporation
- Pickup device11 Mar 2004US 2004/0047245 A1Pioneer Corporation
Most cited
By later US patents
- High density recording system using side-by-side information and servo tracks35US 4,315,283 AVictor Company of Japan, Ltd. · 1982
- Disc record groove skipper25US 3,993,863 ARCA Corporation · 1976
- Keel-tipped stylus, and method and device for making keel-tipped stylus24US 4,450,551 ASanyo Electric Co., Ltd. · 1984
- Capacitive playback stylus22US 4,439,855 ARCA Corporation · 1984
- Disc record groove skipper apparatus21US 3,963,861 ARCA Corporation · 1976